EVERYDAY SCIENCE

Detailed explanation-1: -In a reflector, light enters the telescope at the end opposite the primary mirror. The mirror is a concave mirror. Similar to a convex lens, a concave mirror converges the light at the secondary mirror. The rays of light converge at the focal point.

Detailed explanation-2: -The primary mirror is located at the lower end of the telescope tube in a reflector and has its front surface coated with an extremely thin film of metal, such as aluminum. The back of the mirror is usually made of glass, although other materials have been used from time to time.

Detailed explanation-3: -Reflector telescopes uses two mirrors (primary and secondary mirror) as well as a glass lens (eyepiece lens) in their lens system. Similar to refractors, light rays are gather through the aperture.

Detailed explanation-4: -The secondary mirror is the smaller mirror near the front of the tube that deflects converging light from the primary mirror out through the focuser to the eyepiece (Figure 1). Accurate mirror alignment is important to ensure that the images produced by the telescope are as sharp and crisp as possible.